No way aluminum is stronger than stainless/carbon steel. It might be harder than regular aluminum.. but harder also means more brittle.

I got my new Cabelas Archery catalog today and noticed these heads in there... $36 for 3 heads... [:@] I think that makes them THE MOST EXPENSIVE head on the market.

Sorry I can't afford to gamble my $$$ on expensive gimmicks.. that have come and gone already more than once.